Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor | |
Wang, Yulin; Yang, Binbin; Zhang, Deyi; Shi, Hao; Lei, Miao; Li, Hongxia; Wang, Kunjie | |
2020-05-15 | |
发表期刊 | APPLIED SURFACE SCIENCE |
ISSN | 0169-4332 |
卷号 | 512 |
摘要 | Porous carbons are considered as ideal electrode materials to match the performance and cost requirements of commercial supercapacitor. However the energy waste in the conversion of raw materials to porous carbons by traditional heating method is enormous. Herein we report a strong polar nonaqueous solvent-assisted microwave method for cost-efficient preparation of N and P co-doped microporous carbon. Compared with traditional heating method, the reported material fabricated by microwave irradiation exhibits much higher specific surface area (2204 m(2) g(-1)) and higher large micropore (1 nm ( )<= d <= 2 nm) proportion, more pseudo-capacitance contribution and stronger conductivity also are procured through microwave irradiation. The specific capacitance reaches up to 317 F g(-1) in 6 M KOH solution, which is about 1.36 times higher than that of the control sample fabricated by traditional heating method. The symmetrical supercapacitor device based on the reported material exhibits excellent rate and cycle performance, whose capacitance retention arrives 88% even under high current density of 20 A g(-1), and more than 95% of initial capacitance is retained after 10,000 cycles. Meanwhile, when ionic liquid (EMIMBF4) is employed as electrolyte, the energy density of the supercapacitor device reaches up to 48.6 Wh kg(-1) at a power density of 468.8 W kg(-1). |
关键词 | Microwave fabrication Microporous carbon Supercapacitor Heteroatoms doping |
DOI | 10.1016/j.apsusc.2020.145711 |
收录类别 | SCI ; SCIE ; EI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[51462020][21867015] |
WOS研究方向 | Chemistry ; Materials Science ; Physics |
WOS类目 | Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000522731700082 |
出版者 | ELSEVIER |
EI入藏号 | 20200708159304 |
EI主题词 | Fabrication |
EI分类号 | 701.1 Electricity: Basic Concepts and Phenomena - 711 Electromagnetic Waves - 803 Chemical Agents and Basic Industrial Chemicals - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 951 Materials Science |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/64260 |
专题 | 石油化工学院 |
通讯作者 | Zhang, Deyi |
作者单位 | Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China |
第一作者单位 | 石油化工学院 |
通讯作者单位 | 石油化工学院 |
第一作者的第一单位 | 石油化工学院 |
推荐引用方式 GB/T 7714 | Wang, Yulin,Yang, Binbin,Zhang, Deyi,et al. Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor[J]. APPLIED SURFACE SCIENCE,2020,512. |
APA | Wang, Yulin.,Yang, Binbin.,Zhang, Deyi.,Shi, Hao.,Lei, Miao.,...&Wang, Kunjie.(2020).Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor.APPLIED SURFACE SCIENCE,512. |
MLA | Wang, Yulin,et al."Strong polar nonaqueous solvent-assisted microwave fabrication of N and P co-doped microporous carbon for high-performance supercapacitor".APPLIED SURFACE SCIENCE 512(2020). |
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